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<br />Grade Crossing Analysis to be Completed <br /> <br />As stated above, an in-depth grade crossing analysis will be completed during the preparation of the <br />EIS for the Northstar commuter rail system. The following major types of traffic control treatments <br />for each grade crossing will be recommended along the entire length of the Northstar commuter rail <br />system. This will include station areas as well as in rural and urban areas where the commuter train is <br />operating. <br /> <br />. <br /> <br />· Crossing closure <br />· Full grade separation <br />· Traffic control techniques, including: <br />Passi ve devices <br />Flashing light devices <br />Automatic gates <br />Traffic signals <br />Supplemental passive controls <br />Supplemental active devices <br /> <br />Construction Impacts <br /> <br />Potential construction impacts of implementing the Northstar commuter rail system have been <br />identified at each station location and along track segments where capacity improvements to <br />the BNSF railroad track may be necessary. There are a number of construction impacts <br />related to the implementation of the Northstar commuter rail system that have been briefly <br />identified in the tables. Further analysis of the construction impacts will be completed during <br />the preparation of the EIS for the Northstar commuter rail system. Construction impacts . <br />include: <br /> <br />. Output, earnings, and employment impacts including both economIC impacts and <br />disruption to existing businesses <br />. Air quality construction impacts <br />. Noise and vibration impacts during construction <br />. Construction impacts on communities and neighborhoods <br />. Natural environment construction impacts <br />. Municipal infrastructure construction impacts <br />. Water quality construction impacts <br /> <br />Commuter Rail Feasibility Study <br />March 24, 1999 <br /> <br />8-10 <br />Social and Environmental Impacts <br /> <br />. <br />